<template>
  <div id="DeatilNavBar">
      <nav-bar>
          <div slot="left" class="back" @click="backClick">
              <img src="../../../assets/img/common/back.svg" alt="">
          </div>
          <div slot="center" class="title">
              <div v-for="(item,index) in titles" :key="index" class="title-item" 
              :class="{active:index === currentIndex}"
              @click="navClick(index)">
                {{item}}
            </div>
          </div>
      </nav-bar>
  </div>
</template>

<script>
import NavBar from '@/components/common/navbar/NavBar'
export default {
    name:"DetailNavBar",
    components:{
        NavBar
    },
    data(){
        return {
            titles:['商品','参数','评论','推荐'],
            currentIndex:0
        }
    },
    methods:{
        navClick(index){
            this.currentIndex = index;
        },

        backClick(){
            this.$router.back();
        }
    }
}
</script>

<style>
.title{
    display: flex;
    font-size: 13px;
}

.title-item{
    flex: 1;
}

.active{
    color: var(--color-high-text);
}

.back img{
    margin-top: 12px;
}
</style>